1 # SPDX-License-Identifier: GPL-2.0
2 # Hexagon configuration
3 comment "Linux Kernel Configuration for Hexagon"
7 select ARCH_32BIT_OFF_T
8 select ARCH_HAS_SYNC_DMA_FOR_DEVICE
11 # Other pending projects/to-do items.
12 # select HAVE_REGS_AND_STACK_ACCESS_API
13 # select HAVE_HW_BREAKPOINT if PERF_EVENTS
14 # select ARCH_HAS_CPU_IDLE_WAIT
17 # select GENERIC_PENDING_IRQ if SMP
18 select GENERIC_ATOMIC64
19 select HAVE_PERF_EVENTS
20 # GENERIC_ALLOCATOR is used by dma_alloc_coherent()
21 select GENERIC_ALLOCATOR
22 select GENERIC_IRQ_SHOW
24 select HAVE_ARCH_TRACEHOOK
25 select ARCH_DISCARD_MEMBLOCK
26 select NEED_SG_DMA_LENGTH
29 select GENERIC_SMP_IDLE_THREAD
30 select STACKTRACE_SUPPORT
31 select GENERIC_CLOCKEVENTS
32 select GENERIC_CLOCKEVENTS_BROADCAST
33 select MODULES_USE_ELF_RELA
34 select GENERIC_CPU_DEVICES
36 Qualcomm Hexagon is a processor architecture designed for high
37 performance and low power across a wide variety of applications.
39 config HEXAGON_PHYS_OFFSET
42 Platforms that don't load the kernel at zero set this.
47 config LOCKDEP_SUPPORT
56 config TRACE_IRQFLAGS_SUPPORT
63 # Use the generic interrupt handling code in kernel/irq/:
65 config GENERIC_IRQ_PROBE
68 config RWSEM_GENERIC_SPINLOCK
71 config RWSEM_XCHGADD_ALGORITHM
74 config GENERIC_HWEIGHT
77 config STACKTRACE_SUPPORT
85 menu "Machine selection"
94 Support for the Comet platform.
98 config HEXAGON_ARCH_VERSION
99 int "Architecture version"
103 string "Default kernel command string"
106 On some platforms, there is currently no way for the boot loader
107 to pass arguments to the kernel. For these, you should supply some
108 command-line options at build time by entering them here. At a
109 minimum, you should specify the memory size and the root device
110 (e.g., mem=64M root=/dev/nfs).
113 bool "Multi-Processing support"
115 Enables SMP support in the kernel. If unsure, say "Y"
118 int "Maximum number of CPUs" if SMP
123 This allows you to specify the maximum number of CPUs which this
124 kernel will support. The maximum supported value is 6 and the
125 minimum value which makes sense is 2.
127 This is purely to save memory - each supported CPU adds
128 approximately eight kilobytes to the kernel image.
131 prompt "Kernel page size"
132 default PAGE_SIZE_4KB
134 Changes the default page size; use with caution.
139 config PAGE_SIZE_16KB
142 config PAGE_SIZE_64KB
145 config PAGE_SIZE_256KB
150 source "kernel/Kconfig.hz"